Originally Posted By: drakino
Looking at the benchmarks from the link below, even 5 minutes of idle time is enough to get most of the performance back.

http://hothardware.com/News/OCZ-and-Indilinx-Collaborate-On-New-SSD-Garbage-Collection-Scheme/

How does it know what blocks are actually free?

The Samsung flash controllers apparently know enough about NTFS to read the block bitmap to erase the unused blocks. This obviously isn't great if you don't use NTFS...